@article{IVM_1967_3_a11,
     author = {N. A. Stepanov},
     title = {Basic facts of the theory of $\varphi $-spaces},
     journal = {Izvesti\^a vys\v{s}ih u\v{c}ebnyh zavedenij. Matematika},
     pages = {88--95},
     publisher = {mathdoc},
     number = {3},
     year = {1967},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/IVM_1967_3_a11/}
}